Stereoscopic apparatus



y 9 1940. A. HENNICKE ET AL 2207 1 STEREOSCOPIC APPARATUS Filed Nov. 3,1938 2 Sheets-Sheet 1 M0 Q: t I i I a I i July 9, 1940.

A. HENNICKE ET AL STEREOSCOPIC APPARATUS Filed NOV. 3, 1938 2Sheets-Sheet 2 Jakemar Patented July 9, 1940 Alfred Hennicke and HugoBessel, Hamburg- Altona, Germany Application November 3, issa'seriai No.238,644 In Germany February 10, 1938 Claims.

This invention relates to a stereoscopic apparatus adapted to serve asstereoscopic camera and stereoscope. r

Compared with the known stereoscopic cam- 5 eras, in which the bodycontains stationary film winding and unwinding rolls and stationaryguide rolls by means of which the film is moved past the lenses, theapparatus according to the invention is provided with a receptacledetachably connected with the body and containing the winding andunwinding rolls as well as the deviation and guiding elements for thefilm, and the receptacle possesses also removable means for guiding thefilm to'be viewed.

This construction according to the invention makes it possible to usethe camera as stereoscope without the least trouble. When pictures areto be taken with the apparatus; the film guiding means for viewingpictures may remain in the body during the photographic operations.

Furthermore, in an apparatus according to the invention the filmguiding, means for photographic work and the film guiding means forviewing pictures may form a unitary structure to reduce the number ofloose parts to a minimum. 7 Two embodiments of the inventionareillustrated by way of example in the accompanying drawings, Figures 1 to'1 covering one embodiment and Figs. 9 to 11 the other one.

In the drawings,

Figure 1 is a longitudinal section of the apparatus according to theinvention when used as camera, which is provided with an insertablereceptacle for the film;

Fig. 2 is a section on the line 2-2 of'Fig. 1;

Fig. 3 is a longitudinal section of the appa-- ratus provided with aframe for guiding a film to be viewed;

Fig. 4 is a section on the line 4-4 of Fig. 3; t Fig. 5 is a sectionalview similar to that shown in Fig. 3, in which, however, the guidingframe for viewing a film is in inoperative position and the receptaclefor the taking film is indicated by dots and dashes:

Fig. 6 is a partial sectional detail view of the guiding frame forviewing a film, without the apparatus; Flg. is a section on the line1-1- of Fig. 6;

Fig. 8 is a longitudinal section of a-modilied form of the apparatus, inwhich the receptacle with guiding means for the taking film and theguiding frame for viewing a film form a unit, with the film ready fortaking pictures;

Fig. 9 is asimilar view as Fig. 8, but with the film ready for viewing;

Fig. 10 is a section on the line Ill-II! of Fig. 9;

and

Fig. 11 is a section on the line II'--I i of Fig. 9. 5

The stereoscopic apparatus comprises a body I provided with lenses 2 andeye cups 3. As shown in Figs. 1 to 4, the body i is provided withgrooves 4 for the reception of the edges 5 of a receptacle! containingan unexposed. film 6. The receptacle 1 for the film 6 comprises twolongitudinal walls 8', 9 in which aspool I!) for holding unexposed filmand a take-up spool II are rotatably arranged. The shaft of the spool II passes through the wall 9 and is provided at its 15 end with a knobI2.

' 1 The unexposed film 6 coming from the spool I8 is moved past one ofthe lenses 2 by means of a deviating member I3 and then paeses over awall I4 serving as its guide. The wall It is penetrated by the teeth ofa sprocket or transport roll l5 rotatably disposed in the longitudinalwalls 8, 9 and engaging with its teeth the perforations of the film 6;

From the transport roll I5 the film s is led 25 across the other lens 2and is guided by means of a deviating member I8 to the take-up spool II.

Between the wall I 4 and the receptacle. 1 a seal I! made of felt orothr suitable material maybe provided, and the lower surface of the bodyI may also be protected against the passage of light by seals l8.

From the foregoing, it is apparent that the frames of unexposed filmbefore the lens 2 are a separated by the distance around the receptaclewall l4 and that successive frames may be ex-. posed; until the firstframe exposed before the left hand lens 2 has been reeled around thewall I 4 to a point adjacent the space behind the right hand lens 2.Thus, each frame of each simultaneously 40 exposed pair of frames isseparated from its fellow by the distance around the wall I4. but thatthe successive frames exposed by each lens 2 follow each other in orderand without spacing. To yiewa film prepared from such an exposed 45film, it is necessary the spacing between each frame of eachsimultaneously exposed pair of frames be preserved. With this in view,our particular viewing film support has been formed. The guiding memberfor the film I9 to be viewed comprises two side members 20, 2| rigidlyunited by a cross-piece 22 to form a frame 32. In-the side members 20,2| guide rollers 23, 24 are rotatably placed on shafts 25 by means ofwhich the members 2., 2| are rigidly connected. 55

N) as protected. against light.

Between the side members it, all flaps are movably positioned on shafts27] and limited in their downward movement by the cross-piece 22.. Theflaps 26 are made or light dispersing material. The frame ill? forguiding a film to be viewed is loosely insertedin a hollow space 28formed by partitions 36 in the body I] and can be easily withdrawn bymeans of a handle Zli to bring the flaps out of the position shown inFig. '5 and into the position shown in Fig. 3, and vice versa. 4

The handle comprises a pin having knobs at its ends and c ingclisplacealoly arranged in the member 22 so as not to be in the way whenthe receptacle J inserteol.

The liollot space 28 iorrnerl in the body 6 contains also guide roll 383for the film it to be views-cl.

It is to be notecl the distance from the space behind the left lens 2,up over roll 25, clown over roll up over roll 26 and clown to the spacebehino the right hand lens 2 is equal to the distance around the wall Mof the receptacle 3 so that a corresponding frame of pair of framesloelrinci each lens in viewing.

When the '9 is to be viewed, the guiding frame the space 28 by means ofthe handle The film i9 is then placed over the uocler :le body 6,wl'zereupon the flaps ate the position shown in Fig. 3 ancl .iie isinserted from telow in the lsocly S, the 59 cn agecl by guide rollers 3Qoccupies the position shown.

Ere film relative to the lenses 2 simply pu g one or the other coolthereof which projects from hotly i.

In the cons uction shown Figs. 8 in l the receptacle r guiding thetaking film 3 and the guide 1" the film E9 to be viewetl combinerl'to .v

In this ce, the light dispersing members i i are dispos the TECEEBLQ Ithe film one sicle members 2 fii'of the guiding for the E9 to be viewedare rigidly connected with the sirie walls 36, c

f the receptacle 3G for the menposecl film 6 or are integral therewith.

in this construction the guiding for the i o be viewed, together wi hthe re tance'arounei the receptacle o lis equal to the distance aroundthe guiole rollers so thats proper spacing of correspontiing frames ismaintained. During the taking of a picture marginal sharp ness isproduced by arranging a diaphragm ll in= dicatecl in Figs. 1 and 2, infront of: the lenses 2 The receptacle it possesses the openings 62, it,Big. 9, for viewing, which are covered during photographic work bylight-tight slides to to prevent the light entering through, the lenses2 from passing to the film portion that is to be We claim:

1. A combined stereoscopic camera a :iy'iewer, comprising a hollow body,a pair or lenses'adsptspew res ed for both photographing and viewingcarried by said body, said. body including a pair of combineol filmexposing and film viewing zones each in spaced relation to alens, areceptacle detachably connected to said body and including means forwinding and guiding an unexposed film strip across said zones forsuccessively exposing a plurality of simultaneously exposed pairs offrames of said. strip with each frame exposed by one lens lying adjacentthe previously exposed frame by said lens and separated from thecorresponding frame simultaneously exposed; by the other lens by auniform number of frames, guide means carried by said body for apositive counterpart of said strip, said last named guide meansincluding means for simultaneously positioning a pair of complementaryframes in said viewing zones, and said viewing guide means beinginsertable in saicl body after the removal of said receptacle.

2. A combined stereoscopic camera and viewer, comprising a hollow body,a pair of lenses adapteel for both photographing and viewing carried bysaid. body, said body including a pair oi combined film exposing andfilm viewing zones each in spaced relation to a lens, areceptacledetachably connected to said body and including means for Winding andguiding an unexposed film strip across said zones for successivelyexposing a plurality of simultaneously exposed pairs-oi frames of stripwith each frame exposed by one lens lying adjacent the previouslyexposedfr me by said lens and separated from the correspondingsimultaneously exposed by the other lens by uniform number of frames,guide .eans carried said body for a positive counter art of sairl strip,said last named guide means including means simultaneously positioning apair of complementary frames in said viewing zones, and serl receptacleand. saioi viewing guide comprising e. connected.

[1 combined stereoscopic camera and viewer,

comprising a hollow body, a pair of lenses adapt col tor photographingand. viewing" carrieol by saiel body, sairl body including a pair ofco1nbit-reel film exposing and film viewing zones each in. spacedrelation to a lens, a receptacle detachably connected to said andincluding means for winding and; guiding an unexposed film strip forsuccessively exposing a pltuality of simultaneously exposed pairs of ofsairl strip with each, frame exposed by one lens lying adjacent thepreviously exposed frame by saicl lens and separated from the corresponc ing frame simultaneously exposed by the other lens by uniformnumber of frames, guide. means carried by sairi boriy for a positivecounterpart of said strip, last named guide means including means torsimultaneously positioning pair of complementary frames in said viewingzones, said receptacle and said viewing guide comprising a connectedunit, translucent areas in said receptacle behind seiol zones, slotsthrough receptacle for said counterpart strip, and a removable cover forsaid slots and translucent.

areas.

A combineol stereoscopic camera and viewer, comprising a hollow body, apair of lenses adapteel for both photographing and viewing carried bysaid body, said body including a pair of combined film exposing and filmviewing zones each in spaced relation to lens, a receptacle destripacross said zones for successively exposing as pluralityofsimultaneously exposed pairs of frames of said strip with each frameexposed by one lens lying adjacent the previously exposed frame by saidlens and separated from the corresponding frame simultaneously exposedby the other lens by a uniform number of frames, guide means carried bysaid body for a positive counterpart of said strip, said last namedguide means including means for simultaneously positioning a pair ofcomplementary frames in'said viewing zones, said receptacle and saidviewing guide comprising a connected unit, translucent areas in saidreceptacle behind said zones, slots through said receptacle for saidcounterpart strip, a removable cover for said slots and translucentareas, said receptacle including a wall between said areas and zones,openings in said wall in alinement with said areas and zones, and lighttight slides normally closing said openings.

5. A combined stereoscopic camera and viewer, comprising a hollow body,a pair of lenses adapted for both photographing and viewing carried bysaid body, said body including a pair or combined film exposing and filmviewing zones each in spaced relation to a lens, a receptacle detachablyconnected to said body and including means for winding and guidinganunexposed film strip across said zones for successively exposing aplurality of simultaneously exposed pairs of frames of said strip witheach frame exposed by one lens lying adjacent the previously exposedframe by said lens and separated from the corresponding framesimultaneously exposed by the otherlens by a uniform number of frames,guide means carried by said body for a positive counterpart of saidstrip, said last named guide means including means for simultaneouslypositioning a pair of complementary frames in said viewing zones, andmeans for holding said counterpart in said viewing zones, said means.curving said counterpart in'arcs substantially concentric. tothecurvature of said lenses.

HUGO BOSSEL.

